Guillermo Osorno studied journalism at Columbia University. He was a reporter for special investigations at Reforma, a prominent newspaper in Mexico, and editor at Letras Libres. In 2000, the founded the publishing house Mapas, and was the creator of the magazines Travesías and DF por Travesías. In 2006 he became the editorial director of Gatopardo. Currently, he is the general director of Horizontal.mx. He is also the author of Tengo que morir todas las noches: Una crónica de los ochenta, el underground y la cultura gay (Debate).